In a continuous emulsion polymerization process, at least one monomer, an aqueous phase, and at least two different redox initiators are added to a continuous polymerization reactor comprising a first zone and a second zone. At least one redox initiator is added to the first zone and at least one redox initiator is added to the second zone.
Disclosed are emulsion polymerization methods of at least one ethylenically unsaturated monomer conducted in the presence of an aqueous phase comprising a water soluble chitosan salt and at least one co-stabilizer. Also disclosed is an aqueous dispersion prepared by the emulsion polymerization of at least one ethylenically unsaturated monomer conducted in the presence of a water soluble chitosan salt and at least one co-stabilizer. The emulsion polymer may be included in products including adhesives, binders, coatings, agricultural coatings, pharmaceutical formulations,medical formulations, and waste water treatment formulations.
C08F 14/00 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen
C08F 18/00 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or
C08F 20/00 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nit
C08F 22/00 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical i; Salts, anhydrides, esters, amides, imides, or nitriles thereof
C08F 2/24 - Emulsion polymerisation with the aid of emulsifying agents
C08F 10/00 - Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
C08F 12/00 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring
3.
COPOLYMER DISPERSIONS AND THEIR USE IN PAPER-COATING FORMULATIONS
A stabilized aqueous copolymer dispersion comprises a copolymer of: (a) from 60 to 90% of a vinyl ester of an alkanoic acid having from 1 to 13 carbon atoms; (b) from 2 to 20% ethylene; (c) from 0 to 30 % of an alkyl or hydroxyalkyl acrylate or methacrylate having 2 to 10 carbon atoms in the alkyl portion thereof; (d) from 0.1 to 5 % of a first, ethylenically unsaturated cross-linking co-monomer comprising an epoxy group and/or a silane group; (e) from 0.1 to 5 % of a second, ethylenically unsaturated cross-linking co-monomer selected from a monocarboxylic acid, a dicarboxylic acid and/or a monoester of a dicarboxylic acid; and (f) from 0.1 to 5 % of a third, polyethylenically unsaturated cross-linking co-monomer, wherein all percentages are by weight based on the total weight of the monomers (a), (b) and, where present, (c).
C08F 218/00 - Copolymers having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid
A halogen-containing thermoplastic resin composition comprises (i) a halogen- containing thermoplastic resin; and (ii) a graft copolymer comprising (a) a first polymer produced by emulsion polymerization of at least one vinyl ester of a C1 to C20 carboxylic acid in the presence of a nonionic surfactant and (b) a second polymer having a glass transition temperature of at least 45°C produced by emulsion polymerization of at least one monomer in the presence of the first polymer.
C08L 27/06 - Homopolymers or copolymers of vinyl chloride
C08F 263/04 - Macromolecular compounds obtained by polymerising monomers on to polymers of esters of unsaturated alcohols with saturated acids as defined in group on to polymers of vinyl esters with monocarboxylic acids on to polymers of vinyl acetate
C08F 2/30 - Emulsion polymerisation with the aid of emulsifying agents non-ionic
C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
Disclosed are carpet products made using a first copolymer precoat adhesive to secure carpet fibers to a carpet backing or substrates in combination with a second copolymer skipcoat adhesive for securing a carpet scrim or other layer to a carpet backing. The first copolymer is a copolymer of a vinyl ester and ethylene and a cross-linking comonomer, and the second copolymer is a copolymer of styrene and butadiene. Such emulsions are stabilized with surfactant emulsifiers but are preferably substantially free of protective colloid stabilizers. The first copolymer exhibits an elongation value greater than 125% at 110°C.
An adhesive composition comprises an aqueous dispersion of a polymer comprising at least one vinyl ester of a carboxylic acid having up to 20 carbon atoms; and a plasticizer comprising an ester of a polyol and a linear or branched aliphatic monocarboxylic acid having 3 to 20 carbon atoms in the molecule.
C09J 131/02 - Homopolymers or copolymers of esters of monocarboxylic acids
C09J 133/00 - Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, ; Adhesives based on derivatives of such polymers
7.
FUNCTIONALIZED VINYL ACETATE ETHYLENE BINDERS FOR PAPER AND PAPERBOARD COATINGS
A paper product comprising a planar fibrous cellulose substrate, and a coating composition disposed on a surface of said substrate comprising an interpolymer prepared by the emulsion polymerization of (i) one or more vinyl ester monomers; (ii) ethylene; (iii) an unsaturated silane co-monomer; and (iv) one or more emulsion-stabilizing ionic co-monomers comprising one or more of unsaturated, substituted sulfonic acid, one or more of an unsaturated phosphonic acid, or an ester of one of those acids, in the presence of (v) a stabilizing system which comprises one or more anionic and/or nonionic surfactants but less than about 1 pphm of any protective colloid material; and (v) water.
An aqueous polymer dispersion having a multimodal particle size distribution IS produced by emulsion polymerization of a mixture comprising at least one free-radically polymerizable monomer and a stabilizer composition comprising at least two different stabilizers, wherein one of the stabilizers comprises a polyvinyl alcohol having acid groups attached to its polymer backbone.
A coating composition comprises an emulsion copolymer of a monomer mixture comprising at least one vinyl ester, ethylene, and a stabilizing system. The stabilizing system comprises at least one polyvinyl alcohol. The monomer mixture comprises from 60 to 82 wt% of the at least one vinyl ester and from 18 to 40 wt% of the ethylene based on the total weight of monomers in the mixture. The stabilizing system comprises from 1 to 5 wt% of at least one medium molecular weight polyvinyl alcohol and at least one low molecular weight polyvinyl alcohol. The emulsion copolymer has a solids content from 50% to 60% and a viscosity ranges from 500 to 6,000 mPa.s. and a formaldehyde content of less than 10ppm as determined by HPLC.
An aqueous copolymer dispersion is obtained by emulsion polymerization of a monomer mixture comprising, as main monomers, 10 to 35 weight% of ethylene, 30 to 60 weight% of a vinyl ester of a carboxylic acid having 1 to 9 carbon atoms and 15 to 50 weight% of a vinyl ester of a branched carboxylic acid having 3 to 15 carbon atoms. The monomer mixture also contains 0.1 to 10 weight% of an ethylenically unsaturated monocarboxylic or dicarboxylic acid having 3 to 4 carbon atoms and 0.1 to 10 weight% of a methacrylic or acrylic acid ester modified with epoxide groups and/or hydroxyl groups. The dispersion is stabilized with 0.02 to 2 weight% of a protective colloid, 0.01 to 5 weight% of a non-ionic surfactant and 0.01 to 5 weight% of an anionic surfactant. All weight percentages are based on the total weight of the main monomers.
Disclosed are aqueous latex-based coating components and surfactant stabilized coating components which comprise a non-ionic surfactant, a neutralized phosphate surfactant, and a copolymer of at least a vinyl ester of a C1-13 alkanoic acid and ethylene. The weight ratio of non-ionic surfactant to neutralized phosphate surfactant is greater than 1:1. The components may be free of protective colloids. The coating components may be incorporated into latex paint compositions. The latex paint compositions exhibit high pigment volume concentration and high wet scrub resistance.
Disclosed are aqueous compositions suitable for use as binders or adhesives in carpet products. Such compositions, prior to being applied to carpet substrates and cured, comprise vinyl ester/ethylene copolymer dispersions, along with other optional comonomers. The compositions are made by a continuous emulsion polymerisation that utilises a continuous loop reactor with a secondary line section. Carpet products which utilise such coating compositions to provide binder and/or adhesive layer within the carpet are also disclosed.
A vinyl ester/ethylene copolymer is prepared by emulsion copolymerization of a monomer mixture comprising at least one vinyl ester, ethylene, a stabilizing system comprising polyvinyl alcohol and a free radical redox polymerization initiator system comprising i-butyl hydroperoxide as an oxidizing agent and at least one of a sulfinic acid-based compound and erythorbic acid or a salt thereof as a reducing agent. The monomer mixture comprises from 70 wt % to 95 wt% of said at least one vinyl ester and from 5 wt % to 30 wt % of ethylene based on the total weight of monomers in said mixture and the copolymer has a formaldehyde content of less than 5.0 ppmw as determined by ISO-15173.
Disclosed are aqueous polymer dispersions which can be used as binders in paper coating compositions. Such dispersions are made using a continuous polymerization process involving a tubular reactor with a continuous loop section and a secondary line section and comprise a polymer of polymerized copolymers (a) a vinyl ester, (b) an ethylenically unsaturated mono or di-carboxylic acid or half ester of a di-carboxylic acid, and (c) a comonomer having a multifunctional moiety.
Disclosed are aqueous carpet-coating compositions suitable for use as binders or adhesives in carpet products. Such compositions, prior to being applied to carpet substrates and cured, comprise: A) a selected type of vinyl acetate/ethylene (VAE) copolymer dispersion which has been stabilized with emulsifiers and a cellulose ether-based protective colloid, and B) at least one carbon black based filler in the form of a dispersion / slurry with a solids content between 20 and 70 %. These coating compositions exhibit especially desirable initial viscosity and viscosity stability characteristics. Carpet products which utilize such coating compositions to provide binder and/or adhesive layer within the carpet are also disclosed. Such carpet products can have desirable odor-controlling and odor-absorbing properties.
In a multi-stage emulsion polymerization process, a first monomer composition comprising from about 60 weight percent to about 95 weight percent of at least one vinyl ester, and from about 5 weight percent to about 40 weight percent ethylene is polymerized in a first stage under ethylene pressure to produce a first stage product having a Tg of less than 20 °C. Then, in a second stage, a second monomer composition comprising at least 95 weight percent of a meth(acrylic) ester or a mixture of at least two different (meth)acrylic esters is polymerized in the presence of said first stage product, wherein the (meth)acrylic ester(s) is selected such that the polymer produced by said second monomer composition has a Tg of 5 to 90 °C.
C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
C08F 263/04 - Macromolecular compounds obtained by polymerising monomers on to polymers of esters of unsaturated alcohols with saturated acids as defined in group on to polymers of vinyl esters with monocarboxylic acids on to polymers of vinyl acetate
C09D 151/06 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
B32B 15/082 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin comprising acrylic resins
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
A polymer dispersion comprises particles of a polymer composition formed at least partially by emulsion polymerization of first and second, simultaneously added, substantially styrene-free monomer feeds in the presence of an initiator in a reaction zone. The first monomer feed comprises monomers selected to produce a copolymer having a glass transition temperature less than or equal to about -10°C, while the second monomer feed comprises monomers selected to produce a copolymer having a glass transition temperature greater than or equal to about 50°C. The relative rate of addition of the first and second monomer feeds into the reaction zone is continuously changed during at least part of the emulsion polymerization and the rate of addition of the initiator is changed step-wise at least once during the addition of the first and second monomer feeds.
A copolymer dispersion is described comprising a copolymer derived from a monomer mixture comprising: (a) 88.5 to 94 % by weight of at least one vinyl ester of a saturated carboxylic acid; (b) 5 to 10.5% by weight of ethylene; (c) 0.5 to 5 % by weight of at least one ethylenically unsaturated acid and/or an anhydride thereof and/or a salt thereof; and (d) 0.5 to 5 % by weight of at least one ethylenically unsaturated monomer having at least one crosslinkable functional unit. The weight ratio of vinylester units to ethylene units in the copolymer is between 89: 11 and 94:6 and the dispersion is stabilized with at least 1 % by weight of an emulsifier, wherein the amounts of monomers and emulsifier refer to the total amount of monomers in the copolymer.
Disclosed herein are aqueous compositions which are useful as binders and finishing agents for nonwoven substrates, fabrics and textiles. Such compositions comprise a combination of an aqueous emulsion polymer of the vinyl ester or acrylic acid ester type but having no formaldehyde-generating co-monomers therein, with an aqueous functionalized polyolefin emulsion polymer. Both of these polymeric composition components have selected characteristics of glass transition temperature, viscosity and solids content. When applied to nonwoven substrates such as fibrous webs or fabrics or textiles and then cured, the resulting structures have desirably low formaldehyde content but nevertheless also exhibit very desirable wet and dry tensile strength properties.
An aqueous binder mixture comprises colloidal silica; an aqueous copolymer dispersion and an alkoxy-substituted polysiloxane. The aqueous copolymer dispersion is prepared by emulsion polymerization of a monomer mixture comprising (i) at least 40% by weight, based on the total amount of monomers, of at least one of an ester of an ethylenically unsaturated carboxylic acid, a vinyl ester of an saturated carboxylic acid, and a vinylaromatic monomer; (ii) from 0.1 to 10% by weight, based on the total amount of monomers, of at least one of an ethylenically unsaturated mono- and/or dicarboxylic acid, an ethylenically unsaturated sulfonic acid, an unsaturated phosphoric acid, an ethylenically unsaturated phosphonic acid, and an amide of an ethylenically unsaturated mono- and/or dicarboxylic acid; and (iii) from 0.5 to 15% by weight, based on the total amount of monomers, of an ethylenically unsaturated monomer having at least one alkoxysilyl group.
C09D 133/00 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, a; Coating compositions based on derivatives of such polymers
C09D 143/00 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing boron, silicon, phosphorus, selenium, tellurium or a metal; Coating compositions based on derivatives of such polymers
21.
FUEL PELLETS AND BRIQUETTES, THEIR PRODUCTION AND USE
Disclosed are low-formaldehyde aqueous dispersions of vinyl ester/ethylene, e.g., vinyl acetate/ethylene (VAE), copolymers suitable for use in adhesives for applications such as tobacco or food products wherein only very low levels of formaldehyde are permitted. Such dispersions are prepared by emulsion copolymerization of a monomer mixture comprising a vinyl ester, ethylene, a stabilizing system comprising polyvinyl alcohol preferably having a degree of hydrolysis of at least 97 mole%, and a selected type of free radical redox polymerization initiator system. This selected redox initiator system comprises both a water-insoluble oxidizing agent and a sulfinic acid-based reducing agent. The monomer mixture which is polymerized is substantially free of co-monomers which yield free formaldehyde upon drying or curing of the dispersion and is also substantially free of ethylene oxide-containing emulsifiers. The aqueous dispersions resulting from polymerization of this monomer mixture has a solids content in weight percent and a Brookfield viscosity in millipascal-seconds such that the ratio of solids content to the natural logarithm of viscosity ranges from about 6.34 to about 8.25 wt%/ln(mPa.s). The dispersions herein also have a formaldehyde content of less than about 5.0 ppmw as determined by ISO-15173.
An aqueous dispersion of a vinyl ester/ethylene copolymer is prepared by emulsion copolymerization of a monomer mixture comprising a vinyl ester, ethylene and a polyvinyl alcohol stabilizing system consisting essentially of (a) 0.5 to 3 wt % based on the total monomer weight of a first polyvinyl alcohol having a degree of hydrolysis of at least 98 mole% and (b) 1 to 4 wt % based on the total monomer weight of a second polyvinyl alcohol having a degree of hydrolysis of 85 to 90 mole % and a weight average molecular weight of at least 85,000 g/mol.
C08F 261/04 - Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group on to polymers of unsaturated alcohols on to polymers of vinyl alcohol
C09J 131/04 - Homopolymers or copolymers of vinyl acetate
The present invention relates to the use of a composition for coating food wherein said composition comprises a copolymer obtainable by emulsion polymerization of an aqueous radically polymerizable mixture of monomers comprising a) at least one (meth)acrylate monomer (A), b) at least one (meth)acrylate monomer (B) which is different from monomer (A), c) at least one ethylenically unsaturated carboxylic acid monomer (C1) and/or an ethylenically unsaturated electrically charged monomer (C2), and d) optionally at least one monomer (D) which is different from monomer (A) and (B) and which is selected from the group consisting of (meth)acrylate or (meth)acrylamide which may comprise functional groups;wherein the amount of the sum of monomer (A) and monomer (B)is more than 75 wt.-% and wherein the glass transition temperature of the copolymer is 0 to 25°C, determined according to ASTM E 1356 by differential scanning calorimetry and wherein the composition is substantially free of polyvinyl alcohol.
Disclosed are carpet products comprising at least one flexible substrate and at least one coating layer associated with the at least one flexible substrate. The coating layer is formed from an aqueous composition comprising: A) an emulsifier-stabilized vinyl acetate/ethylene (VAE) emulsion copolymer dispersion wherein the VAE copolymer therein comprises co- monomers which include at least vinyl acetate copolymerized with ethylene and optionally also with other additional functional and/or non-functional co-monomers; and B) at least one particulate filler material selected from particulate inorganic compounds and particulate plastic material. The vinyl acetate/ethylene copolymer in the copolymer dispersion has a particle size, dw, ranging from about 50 to about 500 nm as determined by Laser Aerosol Spectroscopy. Such carpet products maintain their integrity and appearance after multiple machine washing operations. Some of these carpet products which have backing coated with certain of the coating compositions used herein also exhibit desirable non-slip properties.
Disclosed are carpet products comprising at least one flexible substrate and at least one coating and/or adhesive layer associated with the at least one flexible substrate. The coating and/or adhesive layer is formed from an aqueous composition comprising: A) an emulsifier- stabilized vinyl acetate/ethylene (VAE) emulsion copolymer dispersion wherein the VAE copolymer therein comprises co-monomers which include at least vinyl acetate copolymerized with ethylene and optionally also with other additional functional and/or non- functional co-monomers; and B) at least one particulate filler material selected from particulate inorganic compounds and particulate plastic material. The vinyl acetate/ethylene copolymer in the copolymer dispersion has a selected ethylene content or glass transition temperature. It is also preferably substantially free of cross-linkable co-monomer moieties which generate formaldehyde upon curing and preferably has a particle size, dw, ranging from about 50 to about 500 nm. The carpet product is substantially free of polyvinyl chloride and bitumen and exhibits a Class Bl flame-retardancy in accordance with DIN 4102-14, corresponding to a critical heat flux of ≤about 4.5 kW/m2.
The present invention describes a method for the manufacturing of a multi-stage polymer by the following steps: a)polymerizing monomer mixture (A) comprising a-i)vinyl acetate and a-ii)at least one vinyl ester of an aromatic carboxylic acid via free radical emulsion polymerization to obtain copolymer (A); and b)polymerizing monomer mixture (B) comprising b-i)vinyl acetate and b-ii)at least one vinyl ester of aliphatic branched or unbranched carboxylic acids having at least 3 carbon atoms, via free radical emulsion polymerization in the presence of copolymer (A) to obtain the multi-stage polymer with the proviso that said monomer mixture (B) can also be polymerized first to obtain a copolymer (B) and subsequently monomer mixture (A) is polymerized in the presence copolymer (B) to obtain the multi-stage polymer.
C08F 263/02 - Macromolecular compounds obtained by polymerising monomers on to polymers of esters of unsaturated alcohols with saturated acids as defined in group on to polymers of vinyl esters with monocarboxylic acids
C08F 263/04 - Macromolecular compounds obtained by polymerising monomers on to polymers of esters of unsaturated alcohols with saturated acids as defined in group on to polymers of vinyl esters with monocarboxylic acids on to polymers of vinyl acetate
C09D 151/00 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
C09J 151/00 - Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
A plasticized binder composition suitable as a binder for chopped strand mats comprising (a) a copolymer obtainable by reacting; (i) 60-95 pphwm of vinyl acetate; and (ii) 5-40 pphwm of vinyl ester of α-substituted alkanoic acid; and b) a plasticizer, wherein the weight ratio of copolymer/plasticizer is from 1 to 6.
C08L 31/04 - Homopolymers or copolymers of vinyl acetate
D04H 1/64 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
29.
MINERAL WOOL FIBER MATS, METHOD FOR PRODUCING SAME, AND USE
The invention relates to mineral wool fiber mats, which are stabilized by means of a binder made of polymers functionalized with epoxy groups and/or with carboxyl groups and selected cross-linking agents. Said mats can be used as an insulating material and are characterized by low or no formaldehyde emissions.
C08L 25/14 - Copolymers of styrene with unsaturated esters
C08L 31/04 - Homopolymers or copolymers of vinyl acetate
C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
C08J 5/06 - Reinforcing macromolecular compounds with loose or coherent fibrous material using pretreated fibrous materials
C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
30.
MINERAL WOOL FIBRE MATS, METHOD FOR THE PRODUCTION THEREOF AND USE OF SAME
The invention relates to mineral wool fibre mats that are stabilised by a binder consisting of polymers containing carboxyl groups and selected cross-linking agents. Said mats can be used as insulating material and are characterised by low fomaldehyde emissions or the absence thereof.
D04H 1/64 - Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions
The invention relates to vinyl acetate-ethylene-copolymer dispersions suitable in particular for treating textile web materials, and to textile web material treated therewith, being suitable in particular as floor coverings or as belts. The vinyl acetate-ethylene-copolymer dispersions are characterized by a low ethylene unit content, relatively high glass transition temperatures, and a small particle size.
Reinforcing fiber for use in thermoplastic or thermosetting matrix resin are sized with one or more copolymer composition(s) obtainable by reacting: a) 5-90 pphwm of at least one alkyl methacrylate having a Tg of more than 40°C; and b) 5-50 pphwm of at least one alkyl acrylate having a Tg of less than 0°C; and c) 0.1-20 pphwm of at least one C3-C6 unsaturated carboxylic acid; and d) at least one further comonomer selected from the group comprising: (i) 5-50 pphwm of at least one vinyl ester of neoalkanoic acid, and (ii) 10-60 pphwm of at least one vinyl ester of α-monosubstituted fatty acids, and (iii) 5-50 pphwm of vinyl esters of an aromatic carboxylic acid, and (iv) other comonomers.
The invention relates to novel cross-linkable monomers that may be polymerized with ethylenically unsaturated comonomers to form cross-linkable copolymers. Said copolymers may particularly be used in the form of aqueous dispersions as formaldehyde-free adhesives or as coatings with good water resistance. The cross-linkable monomer is a compound in acid or salt form comprising an anion of the formula (I) and one or more cations for producing electrical neutrality, where R1 and R2 represent, independently of one another, hydrogen, alkyl, cycloalkyl, aryl, aralkyl, -COOR5, -COO- cat+ or -CON(R6R7), R6 and R7 represent, independently of one another, hydrogen, alkyl, or aryl, cat+ represents a monovalent cation, and one of the groups R1 or R2 may also represent a group -X-R4-CR5(OH)(SO3-), wherein X, R4, and R5 assume one of the meanings listed below, R3 represents hydrogen, alkyl, or aryl, X is selected from the group of direct C-C bond, -O-, -CH2-O-, -CH2-NR8-, -COO- or -CONR8-, R8 represents hydrogen, alkyl, or aryl, R4 represents alkylene, polyoxyalkylene, cycloalkylene, or arylene, and R5 represents hydrogen, alkyl, cycloalkyl, or aryl.
C07C 323/54 - Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and unsaturated
What are described are alkalized compositions comprising an aqueous dispersion of selected polymers and selected polyaldehydes as crosslinking agents. From these formulations, it is possible to produce coating compositions with very high blocking resistance and excellent mechanical properties.
C09D 133/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
C09D 131/04 - Homopolymers or copolymers of vinyl acetate
C09D 135/06 - Copolymers with vinyl aromatic monomers
The invention relates to compositions comprising an aqueous dispersion of selected polymers and selected polyaldehydes as cross-linking agents. Said formulations may be used to produce adhesives with a very high resistance to boiling water.
Compositions containing selected polymer dispersions, colloidal silicon dioxide, fillers and pigments are described. These can be formulated to produce plasters and renders or paints which have excellent abrasion resistance, a low soiling tendency, high water vapour permeability, good adhesion and good weathering stability. The compositions of the invention can be processed to produce plasters and renders or paints which have a nanostructured surface and differ from conventionally produced surfaces.
C09D 131/02 - Homopolymers or copolymers of esters of monocarboxylic acids
C09D 125/00 - Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
C09D 133/04 - Homopolymers or copolymers of esters
The invention relates to the production of vinyl ester homopolymers or copolymers by emulsion polymerization. The method is conducted in at least two phases in the presence of a component retarding the polymerization, wherein in the first phase the concentration of the vinyl ester monomer in the polymerization mixture by the end of the first phase has not been depleted by more than 50% compared to the concentration of the vinyl ester monomer in the polymerization mixture at the beginning of the first phase, and wherein in the second phase the concentration of the vinyl ester monomer in the polymerization mixture is depleted compared to the concentration at the end of the first phase. The retarding component is depleted during the first phase. The reaction heat is dissipated in the second phase by evaporative cooling. The emulsion polymerization occurs in the first phase at temperatures up to the boiling point of the vinyl ester-water azeotrope and in the second phase at temperatures above the boiling point of the vinyl ester-water azeotrope. The method is characterized by short cycle times and high space/time yields and is safe to perform.
What are described are polyvinyl ester dispersions having a minimum film formation temperature of less than or equal to 10°C. These comprise a crosslinkable polyvinyl ester dispersion and an ester of aliphatic monocarboxylic acids and at least trihydric aliphatic alcohols and/or an ester of at least tribasic aliphatic carboxylic acids and monohydric aliphatic alcohols as film formation assistants. These polyvinyl ester dispersions can be used as adhesives with high water resistance.
The invention relates to multi-step polymers that are predominantly stabilized by nonionic emulsifiers and derived from vinylester-containing hard and soft monomer compositions, wherein at least one monomer composition has to comprise an unsaturated copolymerizable organosilicon compound. The inventive plastic dispersions can be used as binders in emulsion paints and paints and impart to these paints good resistance to caking and rub fastness.
C08F 263/02 - Macromolecular compounds obtained by polymerising monomers on to polymers of esters of unsaturated alcohols with saturated acids as defined in group on to polymers of vinyl esters with monocarboxylic acids
C09D 151/00 - Coating compositions based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
40.
COATING AGENT WITH HIGH ABRASION RESISTANCE METHOD FOR PRODUCTION AND APPLICATION THEREOF
The invention relates to coating agents comprising at least one pigment and/or filler and at least one aqueous dispersion of a selected vinyl ester copolymer stabilised with emulsifiers, containing a mixture of at least one non-ionic emulsifier and at least one salt of a bis-ester of a sulphonated dicarboxylic acid with 4 to 8 carbon atoms as emulsifier. The coating agents formulated with said binders are characterised by a high abrasion resistance.
C08F 230/08 - Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and containing phosphorus, selenium, tellurium, or a metal containing a metal containing silicon
01 - Chemical and biological materials for industrial, scientific and agricultural use
17 - Rubber and plastic; packing and insulating materials
24 - Textiles and textile goods
Goods & Services
(1) Chemicals used in industry namely acids, aldehydes, anhydrides, organic oxides, polyols, vinyl monomers, acrylates, alcohols, esters, ethers, glycols, ketones, amines and salts, for use as plasticizers, solvents and feedstocks for the production of chemical compounds; unprocessed artificial resins, namely cellulose acetate, polyolefins, polyacetal, polyester, nylon, cyclo-olefin copolymers, liquid crystal polymers and polyphenylene sulfide for use in the manufacture of plastics; unprocessed plastics; plastics in extruded form for use in manufacture.
